ALPHA3: low-quality, high-density is a program that can transform any x86 machine code into 100% alphanumeric code with similar functionality as the original code. It works by encoding the original code into alphanumeric data and generating a decoder, which is a piece of x86 machine code written specifically to be 100% alphanumeric. When run, the decoder converts the data back to the original input code and executes it.
In other words:
[original code] → ALPHA3 → [alphanumeric decoder][alphanumeric encoded original code]
Once the result is executed, the alphanumeric decoder decodes the original code over the encoded data and executes it after it has finished:
[alphanumeric decoder][alphanumeric encoded original code] → [alphanumeric decoder][original code]